<template>
    <div class="demo">
      <h2>姓名：{{ name }}</h2>
      <button @click="showName">show - your name</button>
    </div>
</template>
  
  
  
<script>
  export default {
      name:'You',
      data(){
          return {
              name:'李四'
          }
      },
  }
</script>
  